What does the Prime Meridian represent?

The Prime Meridian represents 0 degrees longitude. This is the fundamental reference point from which all other longitudes east and west are measured. It runs through Greenwich, London, and serves as the starting line for defining time zones globally. The importance of the Prime Meridian lies in its role in navigation and mapping, as it allows for a standardized way to reference locations around the world based on their longitudinal coordinates. This is crucial for navigation, geographic information systems, and understanding how different regions relate to one another in terms of global positioning.